Source: steps rewritten in our own words (no more than 8 words in a row copied; part numbers, screw sizes and warnings kept as printed) from HP's Maintenance and Service Guide (PDF, printed pages 48). Not bench-tested. We have not performed this repair; keep HP's manual open for its illustrations. Scope restrictions below are part of the guide: do not apply it to other models, generations or configurations. Service manuals are written for trained technicians; work at your own risk.
Labels: DOCUMENTED = taken from HP's manual; PROPOSED = our own joining or ordering of HP's directions, not an HP instruction; UNPERFORMED = a suggested check that has not been carried out.
Applies to
HP ProBook 455 G9. Confirm the exact model on the service label before starting.
HP ProBook 455 G9 rtc battery replacement. HP prints this procedure on printed page 48 of its maintenance and service guide.
Tools and parts
- Screwdrivers and a non-marking pry tool as HP lists for this procedure
- Static-safe work surface
M34737-001- RTC battery. Source: printed page 49.
Preparation
Save your work, shut the computer down through the operating system, unplug AC power and every external device, and work on a grounded, static-safe surface.
Replacement
- Prepare the computer for disassembly and remove the bottom cover. (printed page 48).
- Take the battery out of the machine. (printed page 48).
- Release the coin cell from its holder and lift it out. (printed page 48).
Part numbers in our catalog
- HP RTC (CMOS) battery M34737-001 (M34737-001)
Check each part page for its source and variant notes before ordering.
Manufacturer manual
HP Maintenance and Service Guide (PDF, HP). Machine-readable copy: /api/guides/hp-probook-455-g9-rtc-battery-replacement-p48